3 years ago

I need help with this math problem please

Mathematics

2 answers:

Gekata [30.6K]3 years ago

8 0

Answer:

C) 3(x+7)²

Step-by-step explanation:

MAVERICK [17]3 years ago

5 0

Answer:

A) (3x + 21)(x + 7)

Step-by-step explanation:

If we look at the equation we can see that it is a quadratic equation, therefore we can factor it in the following way...

$3x^{2} + 42x + 147 = 3x^{2} + 21x + 21x + 147 = 3x(x + 7) + 21(x + 7) = (3x + 21)(x + 7)$

Therefore the answer is A)

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(a + b)(a ² - ab + b ²)

erastova [34]

Hi there!

You can use distributive property to solve this equation.

These are the list of terms you have to multiply :
a × a² = a³
a × -ab = -a²b
a × b² = ab²
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b × -ab = -ab²
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add all of those terms...
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simplify by adding like terms... (- a²b + a²b , ab² - ab²)

a³ + b³

Hope this helped!! :)

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3 years ago

I- Please someone help me -_- I hate math so much

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Answer:

5 & 13

Step-by-step explanation:

a. -9 + 4 = -5

Absolute Value = 5

b. Absolute value of -9 is 9

9 + 4 = 13

<em>hope this helps :)</em>

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2 years ago

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